September 26th, 2011 WorkshopNovember 17, 2011Gathering colour from the marverBy Minna Koistinen Previous Student heating glass at the glory hole Next Cutting a jack line Related Posts Minna Koistinen demonstrates the colour gathering process November 17, 2011 Working the hot glass November 17, 2011 Minna Koistinen shaping and blowing molten glass November 17, 2011 Cutting a jack line into hot glass November 17, 2011